怎么用ajax实现提交评论并自动刷新

<script>
 $(document).ready(function () {
  getcomment();
  $('.comment-box button').click(function () {
   var comment_text = $('.comment-box textarea').val();
   $.ajax({
    type: 'POST',
    url: '/bbs/article/{{ article_list.id }}/comment/',
    data: {comment: comment_text},
    success:function (callback) {
     var data = $.parseJSON(callback);
     $('.callback').html(data.result);
     if(data.result === 'successfully') {
      getcomment();
     }
    }
   })
  });
 });
 function getcomment() {
  $.ajax({
   type: 'GET',
   url: '/bbs/article/{{ article_list.id }}/get_comment/',
   success:function (call) {
    var datas = $.parseJSON(call);
    $('.comment-list').html(datas.answer);
   }
  })
 }
</script>

 <p class="row">
   <p class="comment-list" style="margin-left: 10px">
   </p>
  </p>
  <p class="row">
 <article class="col-xs-12">
     <h4>请评论：</h4>
     <p class="comment-box">
      <textarea class="form-control" rows="3"></textarea>
      <span class="callback"></span><button type="submit" class="btn btn-success pull-right" style="max-width: 5px;">评论</button>
     </p>
 </article>
</p>
  <hr>

@csrf_exempt
def comment(request,article_id):
 if request.method == 'POST':
  comments = request.POST['comment']
  if len(comments) < 5:
   result = u'评论数需大于5'
   return HttpResponse(json.dumps({'result': result}))
  else:
   result = 'successfully'
   Comment.objects.create(content= comments, article_id=article_id)
   return HttpResponse(json.dumps({'result': result}))

def get_comment(request, article_id):
 article_list = get_object_or_404(Article, id=article_id)
 comments = article_list.comment_set.all()
 html = ''
 for i in comments:
  ele = '<p class="row"><article class="col-xs-12"><p class="pull-right"><span class="label label-default">作者:' + 'i.user' + '</span></p><p>' + i.content + '<ul class="list-inline"><li><a href="#" rel="external nofollow" ></a></li></ul></article></p><hr>'
  html += ele
 return HttpResponse(json.dumps({'answer': html}))

function resettext() {
 $('.form-control').val('');
}